/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

// System includes

#include <HbListView>

#include <HbAbstractViewItem>

#include <HbPushButton>

#include <HbEffect>

#include <HbAction>

#include <HbInputDialog>

#include <HbMenu>

#include <HbSelectionDialog>

#include <QSortFilterProxyModel>

// User includes

#include "radiostationsview.h"

#include "radiologger.h"

#include "radiowindow.h"

#include "radiouiengine.h"

#include "radiofrequencyscanner.h"

#include "radiouiloader.h"

#include "radiostationmodel.h"

#include "radiostation.h"

#include "radioutil.h"

// Constants

const char* REGEX_SHOW_FAVORITES = "true";

const char* REGEX_SHOW_ALL = ".+";

/*!

 *

 */

RadioStationsView::RadioStationsView() :

    RadioViewBase( false ),

    mModel( 0 ),

    mScanStationsAction( 0 ),

    mMultiSelectionAction( 0 ),

    mStationsList( 0 ),

    mFavoritesButton( 0 ),

    mLocalStationsButton( 0 ),

    mSelectedStation( new RadioStation ),

    mCurrentQuestion( NoQuestion )

{

}

/*!

 *

 */

RadioStationsView::~RadioStationsView()

{

}

/*!

 *

 */

void RadioStationsView::setNowPlayingIcon( const HbIcon& nowPlayingIcon )

{

    mNowPlayingIcon = nowPlayingIcon;

}

/*!

 *

 */

HbIcon RadioStationsView::nowPlayingIcon() const

{

    return mNowPlayingIcon;

}

/*!

 *

 */

void RadioStationsView::setFavoriteIcon( const HbIcon& favoriteIcon )

{

    mFavoriteIcon = favoriteIcon;

}

/*!

 *

 */

HbIcon RadioStationsView::favoriteIcon() const

{

    return mFavoriteIcon;

}

/*!

 *

 */

void RadioStationsView::setNonFavoriteIcon( const HbIcon& nonFavoriteIcon )

{

    mNonFavoriteIcon = nonFavoriteIcon;

}

/*!

 *

 */

HbIcon RadioStationsView::nonFavoriteIcon() const

{

    return mNonFavoriteIcon;

}

/*!

 * Private slot

 *

 */

void RadioStationsView::handleClick( const QModelIndex& index )

{

    LOG_TIMESTAMP( "Channel change started" );

    QModelIndex sourceIndex = mFilterModel->mapToSource( index );

    *mSelectedStation = mModel->stationAt( sourceIndex.row() );

    mUiEngine->setFrequency( mSelectedStation->frequency(), TuneReason::StationsList );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::handleLongPress( HbAbstractViewItem* item, const QPointF& coords )

{

    Q_UNUSED( item );

    HbMenu* menu = mUiLoader->findObject<HbMenu>( DOCML::NAME_CONTEXT_MENU );

    *mSelectedStation = mFilterModel->data( item->modelIndex(), RadioRole::RadioStationRole ).value<RadioStation>();

    HbAction* favoriteAction = mUiLoader->findObject<HbAction>( DOCML::NAME_CONTEXT_FAVORITE );

    if ( mSelectedStation->isFavorite() ) {

        favoriteAction->setText( hbTrId( "txt_rad_menu_remove_favourite" ) );

    } else {

        favoriteAction->setText( hbTrId( "txt_rad_menu_add_to_favourites" ) );

    }

    HbAction* playAction = mUiLoader->findObject<HbAction>( DOCML::SV_NAME_PLAY_ACTION );

    if ( mSelectedStation->frequency() == mUiEngine->currentFrequency() ) {

        playAction->setVisible( false );

    } else {

        playAction->setVisible( true );

    }

    menu->setPreferredPos( QPointF( size().width() / 2 - menu->size().width() / 2, coords.y() - menu->size().height() / 2 ) );

    menu->show();

}

/*!

 * Private slot

 *

 */

void RadioStationsView::updateAntennaStatus( bool connected )

{

    Q_UNUSED( connected );

    updateVisibilities();

}

/*!

 * Private slot

 *

 */

void RadioStationsView::updateViewMode()

{

    QString section = DOCML::SV_SECTION_SHOW_ALL_STATIONS;

    QString filter = REGEX_SHOW_ALL;

    if ( sender() == mFavoritesButton ) {

        section = DOCML::SV_SECTION_SHOW_FAVORITES;

        filter = REGEX_SHOW_FAVORITES;

    }

    loadSection( DOCML::FILE_STATIONSVIEW, section );

    mFilterModel->setFilterRegExp( filter );

    updateVisibilities();

}

/*!

 * Private slot

 *

 */

void RadioStationsView::startScanning()

{

    const int rowCount =  mUiEngine->stationModel().rowCount();

    mCurrentQuestion = StartScanning;

    if ( rowCount > 0 ) {

        askQuestion( hbTrId( "txt_rad_info_all_stations_in_stations_list_will_be" ) );

    } else {

        userAccepted();

    }

}

/*!

 * Private slot

 *

 */

void RadioStationsView::finishScanning()

{

    updateVisibilities();

    mFrequencyScanner.take();

}

/*!

 * Private slot

 *

 */

void RadioStationsView::updateVisibilities()

{

    LOG_SLOT_CALLER;

    bool listEmpty = mModel->rowCount() == 0;

    const bool localStationsMode = !mFavoritesButton->isChecked();

    if ( !localStationsMode ) {

        listEmpty = mModel->favoriteCount() == 0;

    }

    mMultiSelectionAction->setEnabled( !listEmpty );

    const bool scanAvailable = mUiEngine->isAntennaAttached() && localStationsMode;

    mScanStationsAction->setEnabled( scanAvailable );

    HbPushButton* scanButton = mUiLoader->findWidget<HbPushButton>( DOCML::SV_NAME_SCAN_BUTTON );

    scanButton->setEnabled( scanAvailable );

    loadSection( DOCML::FILE_STATIONSVIEW, listEmpty ? DOCML::SV_SECTION_SHOW_SCAN_TEXT : DOCML::SV_SECTION_HIDE_SCAN_TEXT );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::openMultiSelection()

{

    const bool favoriteMode = mFavoritesButton->isChecked();

    mCurrentQuestion = MultiSelection;

    showSelectionDialog( mFilterModel , 

                         hbTrId( favoriteMode ? "txt_fmradio_title_remove_favorites"

                                              : "txt_fmradio_title_delete_stations" ), 

                         hbTrId( favoriteMode ? "txt_common_button_remove"

                                              : "txt_common_button_delete_toolbar" ) );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::play()

{

    LOG("Play from context menu");

    mUiEngine->setFrequency( mSelectedStation->frequency(), TuneReason::StationsList );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::rename()

{

    HbInputDialog* nameQuery = new HbInputDialog();

    nameQuery->setAttribute( Qt::WA_DeleteOnClose, true );

    nameQuery->setDismissPolicy( HbDialog::TapOutside );

    nameQuery->setPromptText( hbTrId( "txt_rad_dialog_new_name" ) );

    nameQuery->setInputMode( HbInputDialog::TextInput );

    nameQuery->setValue( mSelectedStation->name() );

    nameQuery->setObjectName( DOCML::NAME_INPUT_QUERY );

    nameQuery->open( this, SLOT(renameDone(HbAction*)) );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::toggleFavorite()

{

    mModel->setFavoriteByPreset( mSelectedStation->presetIndex(), !mSelectedStation->isFavorite() );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::deleteStation()

{

    mCurrentQuestion = DeleteStation;

    askQuestion( hbTrId( "txt_rad_info_delete_station" ) );

}

/*!

 * Private slot

 *

 */

void RadioStationsView::renameDone( HbAction* action )

{

    HbInputDialog* dlg = static_cast<HbInputDialog*>( sender() );

    if ( dlg->actions().first() != action ) {

        return;

    }

    if( action ) {

        mModel->renameStation( mSelectedStation->presetIndex(), dlg->value().toString() );

    }

}

/*!

 * From RadioViewBase

 *

 */

void RadioStationsView::init()

{

    LOG_METHOD;

    mModel = &mUiEngine->stationModel();

    mFilterModel = new QSortFilterProxyModel( this );

    mFilterModel->setDynamicSortFilter( true );

    mFilterModel->setFilterRole( RadioRole::IsFavoriteRole );

    mFilterModel->setSourceModel( &mUiEngine->stationModel() );

    loadSection( DOCML::FILE_STATIONSVIEW, DOCML::SV_SECTION_SHOW_ALL_STATIONS );

    if ( !mFavoriteIcon.isNull() && !mNonFavoriteIcon.isNull() && !mNowPlayingIcon.isNull() ) {

        mModel->setIcons( mFavoriteIcon.qicon(), mNonFavoriteIcon.qicon(), mNowPlayingIcon.qicon() );

    }

    mModel->setDetail( RadioStationModel::ShowIcons | RadioStationModel::ShowGenre );

    mStationsList           = mUiLoader->findObject<HbListView>( DOCML::SV_NAME_STATIONS_LIST );

    mFavoritesButton        = mUiLoader->findObject<HbAction>( DOCML::SV_NAME_FAVORITES_BUTTON );

    mLocalStationsButton    = mUiLoader->findObject<HbAction>( DOCML::SV_NAME_LOCALS_BUTTON );

    Radio::connect( mUiEngine.data(),       SIGNAL(antennaStatusChanged(bool)),

                    this,                   SLOT(updateAntennaStatus(bool)) );

    Radio::connect( mModel,                 SIGNAL(rowsInserted(QModelIndex,int,int)),

                    this,                   SLOT(updateVisibilities()) );

    Radio::connect( mModel,                 SIGNAL(rowsRemoved(QModelIndex,int,int)),

                    this,                   SLOT(updateVisibilities()) );

    Radio::connect( mModel,                 SIGNAL(modelReset()),

                    this,                   SLOT(updateVisibilities()) );

    Radio::connect( mFavoritesButton,       SIGNAL(triggered()),

                    this,                   SLOT(updateViewMode()) );

    Radio::connect( mLocalStationsButton,   SIGNAL(triggered() ),

                    this,                   SLOT(updateViewMode()) );

    Radio::connect( mStationsList,          SIGNAL(activated(QModelIndex)),

                    this,                   SLOT(handleClick(QModelIndex)) );

    Radio::connect( mStationsList,          SIGNAL(longPressed(HbAbstractViewItem*,QPointF)),

                    this,                   SLOT(handleLongPress(HbAbstractViewItem*,QPointF)) );

    connectCommonMenuItem( MenuItem::Exit );

    connectXmlElement( DOCML::SV_NAME_SCAN_BUTTON,      SIGNAL(clicked()),

                       this,                            SLOT(startScanning()) );

    // Context menu actions

    connectXmlElement( DOCML::SV_NAME_PLAY_ACTION,      SIGNAL(triggered()),

                       this,                            SLOT(play()) );

    connectXmlElement( DOCML::SV_NAME_RENAME_ACTION,    SIGNAL(triggered()),

                       this,                            SLOT(rename()) );

    connectXmlElement( DOCML::SV_NAME_FAVORITE_ACTION,  SIGNAL(triggered()),

                       this,                            SLOT(toggleFavorite()) );

    connectXmlElement( DOCML::SV_NAME_DELETE_ACTION,    SIGNAL(triggered()),

                       this,                            SLOT(deleteStation()) );

    // "Scan local stations" menu item

    mScanStationsAction = mUiLoader->findObject<HbAction>( DOCML::SV_NAME_SCAN_ACTION );

    Radio::connect( mScanStationsAction,   SIGNAL(triggered() ),

                    this,                   SLOT(startScanning() ) );

    // menu item for opening selection dialog

    mMultiSelectionAction = mUiLoader->findObject<HbAction>( DOCML::SV_NAME_MULTI_SELECTION_ACTION );

    Radio::connect( mMultiSelectionAction, SIGNAL(triggered() ),

                    this,                  SLOT(openMultiSelection() ) );

    connectCommonMenuItem( MenuItem::UseLoudspeaker );

    initListView();

    initBackAction();

    updateViewMode();

}

/*!

 * \reimp

 */

void RadioStationsView::userAccepted()

{

    if ( mCurrentQuestion == StartScanning ) {

        mFrequencyScanner.reset( new RadioFrequencyScanner( *mUiEngine, this ) );

        Radio::connect( mFrequencyScanner.data(),   SIGNAL(frequencyScannerFinished()),

                        this,                       SLOT(finishScanning()) );

        mFrequencyScanner->startScanning();

    } else if ( mCurrentQuestion == DeleteStation ) {

        mModel->removeStation( *mSelectedStation );

    } else if ( mCurrentQuestion == MultiSelection ) {     

        HbSelectionDialog* dlg = static_cast<HbSelectionDialog*>( sender() );

        if( dlg ) {

            QModelIndexList selected = dlg->selectedModelIndexes(); 

            const bool favoriteMode = mFavoritesButton->isChecked();   

            int count = selected.count();

            if( count == mFilterModel->rowCount() ) {

                // delete or remove all

                mModel->removeAll( favoriteMode ? RadioStationModel::RemoveFavorites : RadioStationModel::RemoveAll );

            } else {

                // delete or remove selected, one by one.

                RadioStation station;                             

                QModelIndexList sourceIndices;

                RadioUtil::mapToSource(selected, sourceIndices, mFilterModel );

                mModel->removeByModelIndices( sourceIndices, favoriteMode );

            }

            QString msg = hbTrId(favoriteMode ? "txt_rad_dpophead_l1_favorite_removed" : 

                                                "txt_rad_dpophead_l1_station_deleted", count );

            RadioUtil::showDiscreetNote( msg );

        }

    }

    updateVisibilities();

    mCurrentQuestion = NoQuestion;

}

/*!

 *

 */

void RadioStationsView::initListView()

{

    mStationsList->setModel( mFilterModel );

    mStationsList->setSelectionMode( HbListView::NoSelection );

    mStationsList->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );

    mStationsList->setItemPixmapCacheEnabled( true ); // Improves scrolling FPS rate

}